Dual Slave Mode; Advanced Commissioning - Siemens SINAMICS G110M Operating Instructions Manual

Advanced commissioning

6.2 Inverter control
This means, if the control specifies a scaling factor and an alarm or fault is pending in the
inverter, it sends the current alarm or fault messages and accepts simultaneously the sent
value consisting of AS-i.P0 ... AS-i.P3 as new scaling factor.
• AS-i.P0
• AS-i.P1
• AS-i.P2
• AS-i.P3
(https://support.industry.siemens.com/cs/gb/en/view/1171856).
6.2.5.2

Dual slave mode

In Dual Slave mode, eight bits are available for the communication between the AS-i master
and the inverter. The eight bits are used to transfer process data. In parallel, the control can
start a diagnostic request via AS-i.P0.
The following default settings are possible:
● Default setting 31: Dual Slave mode with fixed setpoints
● Default setting 34: Dual Slave mode with setpoint via AS-i field bus
Default setting 31: Dual Slave mode with fixed setpoints
The control accesses the two slaves of the inverter each via four bits.
Via slave 2, in accordance with profile 7.A.E, the control specifies the speed setpoint via the
motor control bits (AS-i.DO0 ... AS-i.DO2).
Via slave 1, the control sends data in cyclical or acyclical mode, in accordance with profile
7.A.5.
The control requires one bit per slave in order to specify the slave.
Default setting 31, slave 2 with profile 7.A.E: Control -> inverter
• AS-i.DO0
• AS-i.DO1
• AS-i.DO2
• AS-i.DO3
(https://support.industry.siemens.com/cs/gb/en/view/1171856).
If the control specifies the speed setpoint, the inverter replies:
154
Scaling factor bit 0
Scaling factor bit 1
Scaling factor bit 2
Scaling factor bit 3
AS-i System Interface Manual
-> p1020.0 = 2093.0
-> p1021.0 = 2093.1
-> p1022.0 = 2093.2
-> Select slave A or slave B, interconnected internally
AS-i System Interface Manual
Fixed speed bit 0
Fixed speed bit 1
Fixed speed bit 2
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 06/2016, FW V4.7.6, A5E31298649B AG